用“cropland”造句大全，cropland造句

As research of conversion of cropland to forestland develops, many researchers have concerned the follow-up problem of conversion of cropland to forestland.

Soil water content forecast is base work for cropland irrigation timely.

Many gains in cropland are associated with irrigation, but there are also swaths of improvement in rain-fed cropland and pastures in the prairies and plains of North America and western India.

Spatio-temporal variations in the starting dates of growing season in China's cropland over the past 20 years

Land Use-19.1% cropland; 24.4% permanent pasture; 31.3% forests and woodland; 25.2% other; arable land per capita-1.9 acres; land borders-7,611 miles; coastline-12,381 miles.

By using GIS technology, this paper studied the patch dynamics of cropland and grassland in Zhangye oasis, Gansu Province in 1985-2006.

At that time, there was no Haifeishi, Jinsong District was still a cropland. In summer, dragonflies could be caught in paddy fields. Armed police officers and soldiers raised pigs and sheep around.

Most of the villagers survive off tiny plots of cropland.

Environmental quality suitability evaluation of heavy metal polluted cropland soils

Cropland classification is a category of land evaluation, its task is to figure out the quality, quantity and spatial distribution of cropland in some regions.

In the decrement of cropland, 12%of it transfered into forestland.

Soil carbon and nitrogen sequestration following cropland to forage grassland conversion and its effect to CO_2 and N_2O fluxes

Area: 377,800 sq. km.. land use-12.20% cropland, 1.7% permanent pasture, 66.7% forests and woodland, 19.4% others; coastline-34,301 km.; land borders-0 km.

After getting out of the car, and then along a path to continue to walk in, a piece of cropland growing barley, peas, rape and other crops appeared in the lake area, like a picture with pastoral customs.

This is only a part of his cropland.

Temporal and spatial distribution of cropland-population-grain system and pressure index on cropland in Jinghe watershed;

The discussion of calculation method based on multi-object oriented cropland ridge coefficient

Performing the research of this aspect has very important theoretical and practical meaning to carry into conversion of cropland to forest engineering and improve environment.

Several trends are converging to reduce the grain area, including the loss of irrigation water, desert expansion, the conversion of cropland to nonfarm uses, the shift to higher-value crops, and a decline in double-cropping due to the loss of farm labor in the more prosperous coastal provinces.

The soil nutrient condition with different layers changed slightly under Conversion from cropland into Forest, but cropland changed significantly.

The study is an earlier stage job for integrated land-use planning and cropland held-replenish balance in Henan province.

In addition to property damage, the floods have affected some of the nation's most fertile cropland, and are expected to have an impact on already rising food prices, especially for crops like corn.

The research estimates the cropland production potentiality by step correct method.

The converting cropland to forest and grassland impels the land use pattern change, agricultural structure adjustment and agricultural gross output value increase.

A Study of population stress simulation in slope cropland de-farming based on grid;

PIK succeeded in idling about 25 percent of American cropland.

Distribution of heavy metals in cropland soils amended with sewage sludge and in the uptake by soybean

the world loss of cropland