id	keyword
ajst-30242	carbon
ajst-30242	land
ajst-30242	carbon storage
ajst-30242	land use
ajst-30242	province
ajst-30242	henan
ajst-30242	change
ajst-30242	henan province
ajst-30242	area
ajst-30242	city
ajst-30242	data
ajst-30242	total
ajst-30242	vulnerability
ajst-30242	ecosystem
ajst-30242	use change